Selvage fiber control for combing machine



Aug. 4, 1964 J. H. NYDAM 3,142,870

SELVAGE FIBER CONTROL FOR COMBING MACHINE Filed July 25, 1961 2 Sheets-Sheet 1 FROM FROM SUPP SUPP INVENTOR. JOHN H. NYDAM BY K %W JMJM.

m ATTORNEYS Aug. 4, 1964 J. H. NYDAM 3,142,870

' SEZLVAGE FIBER CONTROL FOR COMBING MACHINE Filed July 25, 1961 2 Sheets-Sheet 2 INVENTOR. JOHN H. NYDAM his ATTORNEYS United States Patent i "ice 3,142,870 SELVAGE FIBER CONTROL FOR COMBING MACHINE John H. Nydam, North Uxbridge, Mass., assignor to Whitin Machine Works, Whitinsville, Mass., a corporation of Massachusetts Filed July 25, 1961, Ser. No. 128,625 Claims priority, application Canada May 3, 1961 4 Claims. (Cl. 19-231) This invention relates to mechanisms for controlling the movement of the fibers of a web or fleece as they pass through a combing machine or comb, particularly in that portion of their movement in which the fibers are held by the detaching rolls of the comber.

This application is a continuation-in-part of application Serial No. 28,897, filed May 13, 1960, now abandoned.

Conventional combing machines include detaching rolls that comprise an upper and spaced lower rolls for holding one portion of the web or fleece of fibers while the remaining portion thereof is detached from the held portion. As these detached fibers are held by the detaching rolls and advanced therethrough, the fibers at the edge or selvage of the web or fleece tend to become misaligned with respect to the remaining fibers of the fleece. It will be understood, of course, that it is desired to maintain the fibers in substantially parallel relationship and, in accordance with the present invention, means is provided for insuring the maintenance of such a relationship at the edges of the fleece.

An object of the invention, accordingly, is to provide a mechanism by means of which the selvage fibers of a fleece may be maintained in a desired parallel relationship with respect to the remaining fibers.

The foregoing and other objects of the invention are accomplished by means of the provision of jets of air that are directed against the edge of the fleece in such fashion as to maintain the fibers in the aforementioned parallel relationship.

In order that the invention may be understood in greater detail, reference will now be made to the accompanying drawings, wherein:

FIG. 1 is a view in front elevation, partly broken away and in section, showing a device constructed in accordance with the present invention; and

FIG. 2 is a view in section, taken on the plane indicated by the line 2-2 of FIG. 1 and looking in the direction of the arrows.

FIG. 3 is a view in section illustrating the device of the present invention in use with a roll arrangement different from that shown in FIG. 1.

In the above drawings, the frame of a comber including the portions thereof that carry the detaching rolls is shown at 10. Inasmuch as the related portions of the combing machine form no part of the present invention, they will not be illustrated herein.

Upon the frame an upper detaching roll 11 is provided, together with lower rolls 12 and 13, these rolls being spaced apart in accordance with well-known practice. The web or fleece of fibers passing through the detaching rolls is indicated schematically at 14 and, as indicated by the arrow in FIG. 2, this motion is from right to left as viewed in FIG. 2.

In FIG. 1, the edges of the fleece are indicated schematically by the lines 15 and 16. Outwardly of the edges 3,142,870 PatentedA-ug. 4,1964

15 and 16, pipes 17 and 18 are provided, these pipes being connected with a suitable source of air under pressure and terminating in outlets 19 and 20 which are directed in opposite directions and against the edges 15 and 16 of the web 14 in directions transverse to the direction of move ment of the web.

During operation of the web, air is supplied through the pipes 17 and 18 so that the air jets (indicated schematically at 21) will be directed against the selvage of the fleece to maintain the outer fibers thereof in parallel relationship with respect to the remaining fibers and thus otfset any tendency of the fibers to become misaligned. This tendency is particularly marked at the edges of the fleece and has been a source of constant difficulty in existing machines.

The detaching roll system shown in FIG. 3 includes a pair of driven lower detaching rolls 12, 13 supported by the frame 10, as in FIGS. 1 and 2. The air pipes 17 and 18 are provided between these rolls and their outlets 19 and 20 are directed against the edges of the web 14. Mounted in frame members 34 are a pair of upper detach: ing rolls 31, 32, preferably rubber covered. A weighting roll 33, having a large diameter relative to the rolls 31, 32, is slidably mounted in slots 35 provided in the members 34. The roll 33 serves to maintain proper roll pres sures and its relatively large diameter distributes the weight to the other rolls evenly and with a minimum of deflection.

Fastened to members 34 is a stripper blade 36, the edge of which is set as close as possible to the surface of roll 32 without interfering with its rotation. The stripper 36 keeps fibers from lapping onto the roll 32 and also prevents air from blowing fibers up between the two upper detaching rolls.

While the invention has been described with reference to the specific structure shown in the accompanying drawings, it is not to be limited save as described in the appended claims.

What is claimed is:

1. Comber detaching mechanism for the treatment of fibers comprising, a plurality of upper detaching rolls, a plurality of lower detaching rolls co-operating therewith and spaced apart, means between said lower rolls to direct air against the edge of a web of fibers passing between said upper and lower rolls, and means between said upper and lower rolls to prevent fibers from being blown upwardly between said upper rolls.

2. Mechanism according to claim 1 wherein said air directing means comprises means to direct air against the edge fibers on opposite sides of the web.

3. Comber detaching mechanism for the treatment of fibers comprising a plurality of upper and lower detaching rolls, means between said lower rolls to direct air against the edge of a web of fibers passing between said upper and lower rolls for maintaining the edge fibers of said web in a desired alignment, and means mounted adjacent one of said upper rolls to prevent fibers from passing up into said upper rolls.

4. Comber detaching mechanism for the treatment of fibers comprising a pair of upper detaching rolls, a pair of lower detaching rolls co-operating therewith, means between said lower rolls to direct air against the edge of a web of fibers passing between said upper and lower rolls for maintaining the edge fibers of said web in a desired alignment, and a stripper blade mounted between said 4 upper rolls and closely adjacent one of said upper rolls 2,558,706 Hinson June 26, 1951 for pTeventing fibers from being blown between said upper 2,909,827 Waugh Oct. 27, 1959 rolls and from adhering to said one of said upper rolls. 2,919,970 Russell Jan. 5, 1960 2,962,200 Pouliart et a1 Nov. 29, 1960 References Cited in the file of this patent 5 3,008,865 Hayes et a1 Nov. 14, 1961 UNITED STATES 3,066,882 Havens 6t 31 DEC. 4, 1962 775,804 Eastwood Nov. 22, 1904 FOREIGN PATENTS 1,402,569 Clegg Jan. 3, 1922 326,761 Great Britain Mar. 17, 1930 

3. COMBER DETACHING MECHANISM FOR THE TREATMENT OF FIBERS COMPRISING A PLURALITY OF UPPER AND LOWER DETACHING ROLLS, MEANS BETWEEN SAID LOWER ROLLS TO DIRECT AIR AGAINST THE EDGE OF A WEB OF FIBERS PASSING BETWEEN SAID UPPER AND LOWER ROLLS FOR MAINTAINING THE EDGE FIBERS OF SAID WEB IN A DESIRED ALIGNMENT, AND MEANS MOUNTED ADJACENT ONE OF SAID UPPER ROLLS TO PREVENT FIBERS FROM PASSING UP INTO SAID UPPER ROLLS. 